Minimum Regulatory Capital Requirements (Details) $ in Thousands	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
Statistical Disclosure for Banks [Abstract]
Capital conservation buffer	2.50%
Consolidated
Actual
CET1 (to risk weighted assets)	$ 585,841	$ 544,988
CET1 (to risk weighted assets), ratio	0.0919	0.0921
Tier 1 Capital (to risk weighted assets)	$ 615,819	$ 574,967
Tier 1 Capital (to risk weighted assets), ratio	0.0966	0.0972
Total Capital (to risk weighted assets)	$ 740,585	$ 678,300
Total Capital (to risk weighted assets), ratio	0.1162	0.1147
Tier 1 capital (to average assets)	$ 615,819	$ 574,967
Tier 1 capital (to average assets), ratio	0.0830	0.0824
For Capital Adequacy Purposes
CET1 (to risk weighted assets)	$ 286,727	$ 266,226
CET1 (to risk weighted assets), ratio	4.50%	4.50%
Tier 1 Capital (to risk weighted assets)	$ 382,303	$ 354,968
Tier 1 Capital (to risk weighted assets), ratio	0.0600	0.0600
Total Capital (to risk weighted assets)	$ 509,737	$ 473,290
Total Capital (to risk weighted assets), ratio	0.0800	0.0800
Tier 1 capital (to average assets)	$ 296,638	$ 279,168
Tier 1 capital (to average assets), ratio	0.0400	0.0400
Northpointe Bank
Actual
CET1 (to risk weighted assets)	$ 707,467	$ 663,255
CET1 (to risk weighted assets), ratio	0.1110	0.1121
Tier 1 Capital (to risk weighted assets)	$ 707,467	$ 663,255
Tier 1 Capital (to risk weighted assets), ratio	0.1110	0.1121
Total Capital (to risk weighted assets)	$ 717,233	$ 671,588
Total Capital (to risk weighted assets), ratio	0.1126	0.1135
Tier 1 capital (to average assets)	$ 707,467	$ 663,255
Tier 1 capital (to average assets), ratio	0.0954	0.0950
For Capital Adequacy Purposes
CET1 (to risk weighted assets)	$ 286,700	$ 266,213
CET1 (to risk weighted assets), ratio	4.50%	4.50%
Tier 1 Capital (to risk weighted assets)	$ 382,266	$ 354,951
Tier 1 Capital (to risk weighted assets), ratio	0.0600	0.0600
Total Capital (to risk weighted assets)	$ 509,689	$ 473,268
Total Capital (to risk weighted assets), ratio	0.0800	0.0800
Tier 1 capital (to average assets)	$ 296,604	$ 279,158
Tier 1 capital (to average assets), ratio	0.0400	0.0400
To be Well Capitalized Under Prompt Corrective Action Provisions
CET1 (to risk weighted assets)	$ 414,122	$ 384,530
CET1 (to risk weighted assets), ratio	6.50%	6.50%
Tier 1 Capital (to risk weighted assets)	$ 509,689	$ 473,268
Tier 1 Capital (to risk weighted assets), ratio	0.0800	0.0800
Total Capital (to risk weighted assets)	$ 637,111	$ 591,585
Total Capital (to risk weighted assets), ratio	0.1000	0.1000
Tier 1 capital (to average assets)	$ 370,755	$ 348,947
Tier 1 capital (to average assets), ratio	0.0500	0.0500

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Compliance with Regulatory Capital Requirements under Banking Regulations, Actual

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Amount of total capital as defined by regulatory framework.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
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